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// license:BSD-3-Clause
// copyright-holders:Frank Palazzolo, Aaron Giles, Jonathan Gevaryahu, Raphael Nabet, Couriersud, Michael Zapf
#ifndef MAME_SOUND_TMS5220_H
#define MAME_SOUND_TMS5220_H
#pragma once
#include "machine/spchrom.h"
/* HACK: if defined, uses impossibly perfect 'straight line' interpolation */
#undef TMS5220_PERFECT_INTERPOLATION_HACK
/* clock rate = 80 * output sample rate, */
/* usually 640000 for 8000 Hz sample rate or */
/* usually 800000 for 10000 Hz sample rate. */
/* IRQ callback function, active low, i.e. state=0 */
#define MCFG_TMS52XX_IRQ_HANDLER(_devcb) \
devcb = &tms5220_device::set_irq_handler(*device, DEVCB_##_devcb);
/* Ready callback function, active low, i.e. state=0 */
#define MCFG_TMS52XX_READYQ_HANDLER(_devcb) \
devcb = &tms5220_device::set_readyq_handler(*device, DEVCB_##_devcb);
/* old VSM handler, remove me! */
#define MCFG_TMS52XX_SPEECHROM(_tag) \
tms5220_device::set_speechrom_tag(*device, _tag);
/* new VSM handler */
#define MCFG_TMS52XX_M0_CB(_devcb) \
devcb = &tms5220_device::set_m0_callback(*device, DEVCB_##_devcb);
#define MCFG_TMS52XX_M1_CB(_devcb) \
devcb = &tms5220_device::set_m1_callback(*device, DEVCB_##_devcb);
#define MCFG_TMS52XX_ADDR_CB(_devcb) \
devcb = &tms5220_device::set_addr_callback(*device, DEVCB_##_devcb);
#define MCFG_TMS52XX_DATA_CB(_devcb) \
devcb = &tms5220_device::set_data_callback(*device, DEVCB_##_devcb);
#define MCFG_TMS52XX_ROMCLK_CB(_devcb) \
devcb = &tms5220_device::set_romclk_callback(*device, DEVCB_##_devcb);
class tms5220_device : public device_t, public device_sound_interface
{
public:
enum
{
RS=2,
WS=1
};
tms5220_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
// static configuration helpers
template <class Object> static devcb_base &set_irq_handler(device_t &device, Object &&cb) { return downcast<tms5220_device &>(device).m_irq_handler.set_callback(std::forward<Object>(cb)); }
template <class Object> static devcb_base &set_readyq_handler(device_t &device, Object &&cb) { return downcast<tms5220_device &>(device).m_readyq_handler.set_callback(std::forward<Object>(cb)); }
// old VSM support, remove me!
static void set_speechrom_tag(device_t &device, const char *_tag) { downcast<tms5220_device &>(device).m_speechrom_tag = _tag; }
// new VSM support
template <class Object> static devcb_base &set_m0_callback(device_t &device, Object &&cb) { return downcast<tms5220_device &>(device).m_m0_cb.set_callback(std::forward<Object>(cb)); }
template <class Object> static devcb_base &set_m1_callback(device_t &device, Object &&cb) { return downcast<tms5220_device &>(device).m_m1_cb.set_callback(std::forward<Object>(cb)); }
template <class Object> static devcb_base &set_addr_callback(device_t &device, Object &&cb) { return downcast<tms5220_device &>(device).m_addr_cb.set_callback(std::forward<Object>(cb)); }
template <class Object> static devcb_base &set_data_callback(device_t &device, Object &&cb) { return downcast<tms5220_device &>(device).m_data_cb.set_callback(std::forward<Object>(cb)); }
template <class Object> static devcb_base &set_romclk_callback(device_t &device, Object &&cb) { return downcast<tms5220_device &>(device).m_romclk_cb.set_callback(std::forward<Object>(cb)); }
// Control lines - once written to will switch interface into * "true" timing behaviour.
// all lines with suffix q are active low!
WRITE_LINE_MEMBER( rsq_w );
WRITE_LINE_MEMBER( wsq_w );
DECLARE_WRITE8_MEMBER( combined_rsq_wsq_w );
/* this combined_rsq_wsq_w hack is necessary for specific systems such as
the TI 99/8 since the 5220c and cd2501ecd do specific things if both lines
go active or inactive at slightly different times by separate write_line
writes, which causes the chip to incorrectly reset itself on the 99/8,
where the writes are supposed to happen simultaneously;
/RS is bit 1, /WS is bit 0
Note this is a hack and probably can be removed later, once the 'real'
line handlers above defer by at least 4 clock cycles before taking effect */
DECLARE_WRITE8_MEMBER( data_w );
DECLARE_READ8_MEMBER( status_r );
READ_LINE_MEMBER( readyq_r );
READ_LINE_MEMBER( intq_r );
attotime time_to_ready();
protected:
tms5220_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock, int variant);
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
virtual void device_clock_changed() override;
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override;
// sound stream update overrides
virtual void sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples) override;
private:
static constexpr unsigned FIFO_SIZE = 16;
// 51xx and VSM related
void new_int_write(uint8_t rc, uint8_t m0, uint8_t m1, uint8_t addr);
void new_int_write_addr(uint8_t addr);
uint8_t new_int_read();
void perform_dummy_read();
// 52xx or common
void register_for_save_states();
void data_write(int data);
void update_fifo_status_and_ints();
int extract_bits(int count);
int status_read();
int ready_read();
int cycles_to_ready();
int int_read();
void process(int16_t *buffer, unsigned int size);
int32_t lattice_filter();
void process_command(unsigned char cmd);
void parse_frame();
void set_interrupt_state(int state);
void update_ready_state();
uint8_t TALK_STATUS() const { return m_SPEN | m_TALKD; }
uint8_t &OLD_FRAME_SILENCE_FLAG() { return m_OLDE; } // 1 if E=0, 0 otherwise.
uint8_t &OLD_FRAME_UNVOICED_FLAG() { return m_OLDP; } // 1 if P=0 (unvoiced), 0 if voiced
bool NEW_FRAME_STOP_FLAG() const { return m_new_frame_energy_idx == 0x0F; } // 1 if this is a stop (Energy = 0xF) frame
bool NEW_FRAME_SILENCE_FLAG() const { return m_new_frame_energy_idx == 0; } // ditto as above
bool NEW_FRAME_UNVOICED_FLAG() const { return m_new_frame_pitch_idx == 0; } // ditto as above
// internal state
/* coefficient tables */
const int m_variant; /* Variant of the 5xxx - see tms5110r.h */
/* coefficient tables */
const struct tms5100_coeffs *m_coeff;
/* these contain global status bits */
uint8_t m_PDC;
uint8_t m_CTL_pins;
uint8_t m_state;
/* New VSM interface */
uint32_t m_address;
uint8_t m_next_is_address;
uint8_t m_schedule_dummy_read;
uint8_t m_addr_bit;
/* read byte */
uint8_t m_CTL_buffer;
/* Old VSM interface; R Nabet : These have been added to emulate speech Roms */
//uint8_t m_schedule_dummy_read; /* set after each load address, so that next read operation is preceded by a dummy read */
uint8_t m_data_register; /* data register, used by read command */
uint8_t m_RDB_flag; /* whether we should read data register or status register */
/* these contain data that describes the 128-bit data FIFO */
uint8_t m_fifo[FIFO_SIZE];
uint8_t m_fifo_head;
uint8_t m_fifo_tail;
uint8_t m_fifo_count;
uint8_t m_fifo_bits_taken;
/* these contain global status bits */
uint8_t m_previous_TALK_STATUS; /* this is the OLD value of TALK_STATUS (i.e. previous value of m_SPEN|m_TALKD), needed for generating interrupts on a falling TALK_STATUS edge */
uint8_t m_SPEN; /* set on speak(or speak external and BL falling edge) command, cleared on stop command, reset command, or buffer out */
uint8_t m_DDIS; /* If 1, DDIS is 1, i.e. Speak External command in progress, writes go to FIFO. */
uint8_t m_TALK; /* set on SPEN & RESETL4(pc12->pc0 transition), cleared on stop command or reset command */
uint8_t m_TALKD; /* TALK(TCON) value, latched every RESETL4 */
uint8_t m_buffer_low; /* If 1, FIFO has less than 8 bytes in it */
uint8_t m_buffer_empty; /* If 1, FIFO is empty */
uint8_t m_irq_pin; /* state of the IRQ pin (output) */
uint8_t m_ready_pin; /* state of the READY pin (output) */
/* these contain data describing the current and previous voice frames */
uint8_t m_OLDE;
uint8_t m_OLDP;
uint8_t m_new_frame_energy_idx;
uint8_t m_new_frame_pitch_idx;
uint8_t m_new_frame_k_idx[10];
/* these are all used to contain the current state of the sound generation */
#ifndef TMS5220_PERFECT_INTERPOLATION_HACK
int16_t m_current_energy;
int16_t m_current_pitch;
int16_t m_current_k[10];
#else
uint8_t m_old_frame_energy_idx;
uint8_t m_old_frame_pitch_idx;
uint8_t m_old_frame_k_idx[10];
uint8_t m_old_zpar;
uint8_t m_old_uv_zpar;
int32_t m_current_energy;
int32_t m_current_pitch;
int32_t m_current_k[10];
#endif
uint16_t m_previous_energy; /* needed for lattice filter to match patent */
uint8_t m_subcycle; /* contains the current subcycle for a given PC: 0 is A' (only used on SPKSLOW mode on 51xx), 1 is A, 2 is B */
uint8_t m_subc_reload; /* contains 1 for normal speech, 0 when SPKSLOW is active */
uint8_t m_PC; /* current parameter counter (what param is being interpolated), ranges from 0 to 12 */
/* NOTE: the interpolation period counts 1,2,3,4,5,6,7,0 for divide by 8,8,8,4,4,2,2,1 */
uint8_t m_IP; /* the current interpolation period */
uint8_t m_inhibit; /* If 1, interpolation is inhibited until the DIV1 period */
uint8_t m_uv_zpar; /* If 1, zero k5 thru k10 coefficients */
uint8_t m_zpar; /* If 1, zero ALL parameters. */
uint8_t m_pitch_zero; /* circuit 412; pitch is forced to zero under certain circumstances */
uint8_t m_c_variant_rate; /* only relevant for tms5220C's multi frame rate feature; is the actual 4 bit value written on a 0x2* or 0x0* command */
uint16_t m_pitch_count; /* pitch counter; provides chirp rom address */
int32_t m_u[11];
int32_t m_x[10];
uint16_t m_RNG; /* the random noise generator configuration is: 1 + x + x^3 + x^4 + x^13 TODO: no it isn't */
int16_t m_excitation_data;
/* The TMS52xx has two different ways of providing output data: the
analog speaker pin (which was usually used) and the Digital I/O pin.
The internal DAC used to feed the analog pin is only 8 bits, and has the
funny clipping/clamping logic, while the digital pin gives full 10 bit
resolution of the output data.
TODO: add a way to set/reset this other than the FORCE_DIGITAL define
*/
uint8_t m_digital_select;
/* io_ready: page 3 of the datasheet specifies that READY will be asserted until
* data is available or processed by the system.
*/
uint8_t m_io_ready;
/* flag for "true" timing involving rs/ws */
uint8_t m_true_timing;
/* rsws - state, rs bit 1, ws bit 0 */
uint8_t m_rs_ws;
uint8_t m_read_latch;
uint8_t m_write_latch;
sound_stream *m_stream;
emu_timer *m_timer_io_ready;
/* callbacks */
devcb_write_line m_irq_handler;
devcb_write_line m_readyq_handler;
// next 2 lines are old speechrom handler, remove me!
const char *m_speechrom_tag;
speechrom_device *m_speechrom;
// next lines are new speechrom handler
devcb_write_line m_m0_cb; // the M0 line
devcb_write_line m_m1_cb; // the M1 line
devcb_write8 m_addr_cb; // Write to ADD1,2,4,8 - 4 address bits
devcb_read_line m_data_cb; // Read one bit from ADD8/Data - voice data
// On a real chip rom_clk is running all the time
// Here, we only use it to properly emulate the protocol.
// Do not rely on it to be a timed signal.
devcb_write_line m_romclk_cb; // rom clock - Only used to drive the data lines
};
class tms5220c_device : public tms5220_device
{
public:
tms5220c_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
};
class cd2501e_device : public tms5220_device
{
public:
cd2501e_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
};
class tms5200_device : public tms5220_device
{
public:
tms5200_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
};
class cd2501ecd_device : public tms5220_device
{
public:
cd2501ecd_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
};
DECLARE_DEVICE_TYPE(TMS5220, tms5220_device)
DECLARE_DEVICE_TYPE(TMS5220C, tms5220c_device)
DECLARE_DEVICE_TYPE(CD2501E, cd2501e_device)
DECLARE_DEVICE_TYPE(TMS5200, tms5200_device)
DECLARE_DEVICE_TYPE(CD2501ECD, cd2501ecd_device)
#endif // MAME_SOUND_TMS5220_H
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